Side Effects of Cancer Treatment

Condition: Shoulder pain in a throwing athlete is caused by too much stress on the shoulder muscles or tendons. Sometimes the ball of the upper arm bone may come out of the socket in the shoulder. This is called a dislocation.

Background: The group of muscles and tendons in the shoulder is called the rotator cuff. Repeated throwing and/or improper technique can cause irritation, inflammation, and sometimes tears in the rotator cuff.

Risk Factors: Shoulder pain in a throwing athlete usually results from overuse, poor technique, or weakness from a previous injury. Sometimes a person may be born with an unstable shoulder joint.

History and Symptoms: Pain may come on either suddenly or gradually during activity, and then progress to pain at rest. The throwing arm may feel “dead” or numb, and throwing speed and accuracy may suffer. Throwing may also cause a popping sound from the shoulder.

Physical Exam: The doctor will test muscle strength and try to determine what kinds of movement are particularly painful.

Diagnostic Process: X-rays and MRI scans of the shoulder may be done to find out if there is a tear in the tendons or muscles. CT scans may also be done.

Rehab Management: The first step of treatment is to reduce the pain and inflammation with non-steroidal anti-inflammatory drugs (NSAIDs), ice, and sometimes ultrasound or electric stimulation. Then exercise can help strengthen the muscles. When the arm can move with no pain, the athlete can begin throwing, gradually increasing the number, distance, and speed of throws. Sometimes the way the athlete throws will need to be changed to prevent the injury from recurring.

Other Resources for Patients and Families: Family support can help athletes stick to their rehab plan and cope with not being able to participate in their sport.